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NTSB Report
February 12, 2026 · Beech C23 · N1988L
Knoxville, TN
Overview
Report Status
Probable Cause
Event Type
Accident
Date
February 12, 2026
Injury Outcomes
1 injury (1 minor injury)
Location
Knoxville, TN
Aircraft
Beech C23 (1976)
Tail Number
N1988L
Operator
Portal Planes
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ERA26LA128
The pilot reported that she was conducting traffic pattern work following the completion of the airplane’s annual inspection. During landing, as the nose wheel touched down, the airplane veered abruptly to the left. She attempted to maintain directional control with the rudder pedals, but the airplane continued to the left, exited the runway and impacted a ditch, which resulted in substantial damage to the wings and fuselage. A postaccident examination by an airframe and powerplant mechanic revealed no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s failure to maintain directional control of the airplane during the landing roll, which resulted in a runway excursion and collision with a ditch.
Full Narrative
The pilot reported that she was conducting traffic pattern work following the completion of the airplane’s annual inspection. During landing, as the nose wheel touched down, the airplane veered abruptly to the left. She attempted to maintain directional control with the rudder pedals, but the airplane continued to the left, exited the runway and impacted a ditch, which resulted in substantial damage to the wings and fuselage. A postaccident examination by an airframe and powerplant mechanic revealed no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time13:15 EST
Nearest AirportKnoxville Downtown Island (0.2nm ESE)
Runway08
Runway Length3499 ft
Runway Width75 ft
Flight Plan FiledVFR
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech C23
Tail NumberN1988L
Aircraft CategoryAir
DamageSubstantial
OperatorPortal Planes
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A4K · Reciprocating · 180
Seats4
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 58 · Third Class · Minor
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point48 F / 25 F
Altimeter30.26 inHg
Observation Time12:35
Weather SourceWFAC